Improvement in devices for inserting metallic staples



H. R. HEYL. DEVICES FOR INSERTING METALLIC STAPLES.

Alforney.

"PETERS, PHOTG-LITHGGRAPHER. WASHKNGTON D C UNITED STATES PATENT @EenHENRY R. HEYL, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN DEVICES FOR INSERTING METALLIC STAPLES.

Specification forming part of Letters Patent No. 195,603, datedSeptember Q5, 1877; application filed September 20, 1877.

To all whom t may concern Be it known that I, HENRY R.. HEYL, of thecity and county of Philadelphia and State of Pennsylvania, have inventeda new and useful Improvement in Paper-Fasteners, which improvement isfully set forth in the following specification and accompanyingdrawings, in which- Fignres 1 and 5 are side elevations of the fastenerembodying my invention. Fig. 2 is a vertical section in line :v :0,Fig. 1. Fig. 3 is a side elevation, partly sectional. Fig. 4 is ahorizontal section in line y y, Fig. 1.

Similar letters of reference indicate corresponding parts in the severalgures.

My invention consists of an implement of the form of a hand-stamp bywhich metallic staples may be forced through sheets of paper documents,and secured by clinching the legs on the reverse side.

Referring to the drawings, A represents a stationary anvil, which issecured to or formed with an arm rising from a suitable stand ofconvenient form for use upon a writingalesk, and B represents a slidingguide-block fitted to the anvil A by a sliding joint, and having groovesC G, which match with the tongue of the anvil, the upper face of theblock being flat. The normal position of the guide B is elevated, and inorder to keep it in this position, or from dropping prematurely, Iemploy a spring, D, which may press u p under the guide, or a spring,D', which may press against it, and thus produce the necessary friction.E represents a reciprocating driver, whose under face is flat, and inthe same is a concave recess, F, said driver having a knob, G, forreceiving the blows of the hand, and provided with a spring, H,forcausing the return or elevation of the driver.

The operation is as follows: A staple is placed within the grooves O C,with its crown resting on the anvil A, the points thus being upward. Thepapers to be united are now placed upon the face of the guide B over thestaple-points, and, by a sharp blow of the hand upon the knob G, thedriver is forced downward upon the papers: The guide B gives way, andthe staple-legs come up through the papers into the recess F, where theyare bent over preparatory to the final clinching. The hand is nowreleased from the knob of the driver, the latter then rising, and thepapers are drawn somewhat forward, until the staplecrown rests upon theface of the guide B, when another blow is imparted to the driver, andthe dat portion of its face descends forcibly on the staple-legs, so asto bend the latter close to the paper, thus completing the operation.

It will be seen that the grooves C C serve to support and guide thestaple-legs during their penetration through the papers, and the recessF is so shaped that, as the staple-legs enter thereinto, they willstrike the concave or slanting walls of said recess, and thus be bentinward toward each other suflciently toinsure their being bent downproperly' when again struck between the faces of the guide B and driverE.

A plate, a, may be advantageously employed to overlap the staple-crownfor preventing the latter from binding while the legs are being forcedthrough the papers.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The reciprocating driver E, constructed with a flat face recessed,substantially as described, whereby the projecting ends of staples maybe first bent over by entering the recess and then ilattened down bypressure from the flat face.

2. The self-adjusting guide-block B, having staple-guiding grooves C Cand a flat face, upon which to complete the clinching of the staple,substantially as and for the purpose set forth.

3. The combination of the stationary staple support or anvil A with thesliding guide B, grooved to partially embrace and guide the staple-legs,substantially as and for the purpose set forth.

Witnesses J oHN A. WrEDERsHEIM, H. E. HINDMAEsH.

